What We Know About Vaping-Related Lung Illness

Doctors, officials urge people to stop vaping as they investigate six deaths, hundreds of potential cases of pulmonary illness

Altria, the maker of Marlboro cigarettes, recently invested almost $13 billion in e-cigarette company Juul. Some experts say in its early days Juul mirrored the tobacco industry’s promotional playbook in an effort to hook young people. Photo: Natalia V. Osipova/The Wall Street Journal

Health officials are investigating 380 confirmed and probable cases of pulmonary illness in the U.S. related to vaping and e-cigarette products. The illnesses are spread across 36 states and one U.S. territory, and six people have died. The latest death, reported on Sept. 10, was a Kansas resident over the age of 50, the state’s health department said.

Many doctors and health officials are urging people to stop vaping during the investigation. On Wednesday, President Trump said the administration plans to ban all non-tobacco-flavored...